player_skate.h

   1 #ifndef PLAYER_SKATE_H
   2 #define PLAYER_SKATE_H
   3
   4 #include "player_api.h"
   5
   6 #define SKATE_CCD
   7
   8 typedef struct jump_info jump_info;
   9
  10 struct player_skate{
  11    struct player_skate_state{
  12       enum skate_activity{
  13          k_skate_activity_air,
  14          k_skate_activity_air_to_grind,
  15          k_skate_activity_ground,
  16          k_skate_activity_undefined,
  17          k_skate_activity_grind_any,
  18          k_skate_activity_grind_boardslide,
  19          k_skate_activity_grind_metallic,
  20          k_skate_activity_grind_back50,
  21          k_skate_activity_grind_front50,
  22          k_skate_activity_grind_5050
  23       }
  24       activity,
  25       activity_prev;
  26
  27       u32 grind_cooldown,
  28           surface_cooldown;
  29
  30       f32 reverse, slip, delayed_slip_dir;
  31       int manual_direction;
  32
  33       /* tricks */
  34       v3f   flip_axis;
  35       float flip_time,
  36             flip_rate;
  37
  38       v3f   trick_vel,     /* measured in units of TAU/s */
  39             trick_euler;   /* measured in units of TAU */
  40       float trick_time;
  41       enum  trick_type{
  42          k_trick_type_none,
  43          k_trick_type_kickflip,
  44          k_trick_type_shuvit,
  45          k_trick_type_treflip
  46       }
  47       trick_type;
  48       float gravity_bias;
  49
  50       v3f up_dir;
  51       v3f head_position;
  52
  53       v3f throw_v;
  54       v3f cog_v, cog;
  55
  56       float grabbing;
  57       v2f grab_mouse_delta;
  58
  59       int charging_jump, jump_dir;
  60       float jump_charge,
  61             slap;
  62
  63       double jump_time;
  64       double start_push,
  65              cur_push;
  66
  67       v3f prev_pos;
  68
  69       /* initial launch conditions */
  70       double air_start;
  71       v3f    air_init_v,
  72              air_init_co;
  73
  74       v4f smoothed_rotation;
  75
  76       float land_dist;
  77       v3f land_normal;
  78
  79       /* animator controls which require persistence */
  80       v3f board_trick_residualv,
  81           board_trick_residuald;
  82       f32 blend_slide,
  83           blend_z,
  84           blend_x,
  85           blend_fly,
  86           blend_grind,
  87           blend_grind_balance,
  88           blend_stand,
  89           blend_push,
  90           blend_jump,
  91           blend_airdir,
  92           blend_weight,
  93           blend_trick_foot,
  94           subslap;
  95       v2f wobble;
  96    }
  97    state;
  98
  99    /* animation /audio
 100     * --------------------------------------------------------------*/
 101    struct skeleton_anim *anim_stand, *anim_highg, *anim_slide,
 102                         *anim_air, *anim_grind, *anim_grind_jump,
 103                         *anim_push,  *anim_push_reverse,
 104                         *anim_ollie, *anim_ollie_reverse,
 105                         *anim_grabs, *anim_stop;
 106
 107    /* vectors representing the direction of the axels in localspace */
 108    v3f truckv0[2];
 109
 110    audio_channel *aud_main, *aud_slide, *aud_air;
 111    enum mdl_surface_prop surface, audio_surface;
 112
 113    int wheel_contacts[2];
 114    float sample_change_cooldown;
 115
 116    enum {
 117       k_skate_sample_concrete,
 118       k_skate_sample_wood,
 119       k_skate_sample_concrete_scrape_metal,
 120       k_skate_sample_concrete_scrape_wood,
 121       k_skate_sample_metal_scrape_generic
 122    }
 123    main_sample_type;
 124    player_pose holdout;
 125
 126    /*
 127     * Physics
 128     * ----------------------------------------------------
 129     */
 130
 131    float substep, substep_delta;
 132
 133    struct jump_info{
 134       v3f   log[50];
 135       v3f   n;
 136       v3f   apex;
 137       v3f   v;
 138
 139       float gravity;
 140
 141       int   log_length;
 142       float score,
 143             land_dist;
 144
 145       enum prediction_type{
 146          k_prediction_none,
 147          k_prediction_unset,
 148          k_prediction_land,
 149          k_prediction_grind
 150       }
 151       type;
 152
 153       u32   colour;
 154    }
 155    possible_jumps[36];
 156    u32 possible_jump_count;
 157
 158    v3f surface_picture,
 159        weight_distribution,
 160        grind_vec,
 161        grind_dir;
 162
 163    float grind_strength;
 164    struct grind_limit{
 165       v3f ra, n;
 166       float p;
 167    }
 168    limits[3];
 169    u32 limit_count;
 170 };
 171
 172 VG_STATIC float
 173    k_friction_lat          = 12.0f,
 174    k_friction_resistance   = 0.01f,
 175
 176    k_max_push_speed        = 16.0f,
 177    k_push_accel            = 10.0f,
 178    k_push_cycle_rate       = 8.0f,
 179
 180    k_steer_ground          = 2.5f,
 181    k_steer_air             = 3.6f,
 182
 183    k_jump_charge_speed     = (1.0f/0.4f),
 184    k_jump_force            = 5.0f,
 185
 186    k_cog_spring            = 0.2f,
 187    k_cog_damp              = 0.02f,
 188    k_cog_mass_ratio        = 0.9f,
 189
 190    k_mmthrow_steer         = 1.0f,
 191    k_mmthrow_scale         = 6.0f,
 192    k_mmcollect_lat         = 2.0f,
 193    k_mmcollect_vert        = 0.0f,
 194    k_mmdecay               = 12.0f,
 195    k_spring_angular        = 1.0f,
 196
 197    k_spring_force          = 300.0f,
 198    k_spring_dampener       = 5.0f,
 199
 200    k_grind_spring          = 50.0f,
 201    k_grind_aligment        = 10.0f,
 202    k_grind_dampener        = 5.0f,
 203
 204    k_surface_spring        = 100.0f,
 205    k_surface_dampener      = 40.0f,
 206    k_manul_spring          = 200.0f,
 207    k_manul_dampener        = 30.0f,
 208    k_board_interia         = 8.0f,
 209
 210    k_grind_decayxy         = 30.0f,
 211    k_grind_axel_min_vel    = 1.0f,
 212    k_grind_axel_max_angle  = 0.95f, /* cosine(|a|) */
 213    k_grind_axel_max_vangle = 0.4f,
 214    k_grind_max_friction    = 3.0f,
 215    k_grind_max_edge_angle  = 0.97f,
 216
 217    k_board_length          = 0.45f,
 218    k_board_width           = 0.13f,
 219    k_board_end_radius      = 0.1f,
 220    k_board_radius          = 0.14f,    /* 0.07 */
 221
 222    k_grind_balance         = -40.0f;
 223
 224 VG_STATIC void player__skate_register(void)
 225 {
 226    VG_VAR_F32( k_grind_dampener,       flags=VG_VAR_CHEAT );
 227    VG_VAR_F32( k_grind_spring,         flags=VG_VAR_CHEAT );
 228    VG_VAR_F32( k_grind_aligment,       flags=VG_VAR_CHEAT );
 229    VG_VAR_F32( k_surface_spring,       flags=VG_VAR_CHEAT );
 230    VG_VAR_F32( k_surface_dampener,     flags=VG_VAR_CHEAT );
 231    VG_VAR_F32( k_board_interia,        flags=VG_VAR_CHEAT );
 232    VG_VAR_F32( k_grind_decayxy,        flags=VG_VAR_CHEAT );
 233    VG_VAR_F32( k_grind_axel_min_vel,   flags=VG_VAR_CHEAT );
 234    VG_VAR_F32( k_grind_axel_max_angle, flags=VG_VAR_CHEAT );
 235    VG_VAR_F32( k_grind_max_friction,   flags=VG_VAR_CHEAT );
 236    VG_VAR_F32( k_grind_balance,        flags=VG_VAR_CHEAT );
 237    VG_VAR_F32( k_friction_lat,         flags=VG_VAR_CHEAT );
 238
 239    VG_VAR_F32( k_cog_spring,           flags=VG_VAR_CHEAT );
 240    VG_VAR_F32( k_cog_damp,             flags=VG_VAR_CHEAT );
 241    VG_VAR_F32( k_cog_mass_ratio,       flags=VG_VAR_CHEAT );
 242
 243    VG_VAR_F32( k_spring_force,         flags=VG_VAR_CHEAT );
 244    VG_VAR_F32( k_spring_dampener,      flags=VG_VAR_CHEAT );
 245    VG_VAR_F32( k_spring_angular,       flags=VG_VAR_CHEAT );
 246
 247    VG_VAR_F32( k_mmthrow_scale,        flags=VG_VAR_CHEAT );
 248    VG_VAR_F32( k_mmcollect_lat,        flags=VG_VAR_CHEAT );
 249    VG_VAR_F32( k_mmcollect_vert,       flags=VG_VAR_CHEAT );
 250    VG_VAR_F32( k_mmdecay,              flags=VG_VAR_CHEAT );
 251    VG_VAR_F32( k_mmthrow_steer,        flags=VG_VAR_CHEAT );
 252 }
 253
 254 VG_STATIC void player__skate_bind         ( player_instance *player );
 255 VG_STATIC void player__skate_pre_update   ( player_instance *player );
 256 VG_STATIC void player__skate_update       ( player_instance *player );
 257 VG_STATIC void player__skate_post_update  ( player_instance *player );
 258 VG_STATIC void player__skate_im_gui       ( player_instance *player );
 259 VG_STATIC void player__skate_animate      ( player_instance *player,
 260                                             player_animation *anim );
 261 VG_STATIC void player__skate_post_animate ( player_instance *player );
 262 VG_STATIC void player__skate_reset        ( player_instance *player,
 263                                             ent_spawn *rp );
 264
 265 VG_STATIC void player__skate_clear_mechanics( player_instance *player );
 266 VG_STATIC void player__skate_reset_animator( player_instance *player );
 267 VG_STATIC void player__approximate_best_trajectory( player_instance *player );
 268
 269 #endif /* PLAYER_SKATE_H */